Ralph Waldo Emerson,
Natural history of intellect, and other papers
(1893)
“ What is life but what a man is thinking of all day? This is his fate and his employer. Knowing is the measure of the man. By how much we know, so much we are.The laws and powers of the Intellect have, however, a stupendous peculiarity, of being at once observers and observed. So that it is difficult to hold them fast, as objects of examination, or hinder them from turning the professor out of his chair. The wonder of the science of Intellect is that the substance with which we deal is of that subtle and active quality that it intoxicates all who approach it. ”
